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WHO worried rich countries could hoard vaccines over Omicron fear

The WHO warned wealthy countries on Thursday against hoarding Covid-19 vaccines for booster shots as they try to fight off the new Omicron variant, threatening supplies to poorer countries where inoculation rates are low. Many Western nations have been rolling out boosters, targeting the elderly and people with underlying health issues, but worries about the fast-spreading Omicron have prompted some to expand their programmes.